Battery thermal management device

Abstract

The utility model discloses a battery heat management device which comprises a water supply assembly, a heat management assembly and a battery frame, the battery is mounted in the battery frame; a first water pipe is connected between the water supply assembly and the heat management assembly, and the water supply assembly is mounted at the top of the heat management assembly; the heat management assembly comprises a heat management box, heat management equipment and a fan, the heat management equipment and the fan are mounted in the heat management box, the heat management box is mounted at the top of the battery frame, and a second water pipe is connected between the heat management equipment and a battery in the battery frame. According to the utility model, under the severe conditions of high temperature, high dust, frequent vibration, impact and the like of the hybrid loader, all parts are still stably connected, cooling water cannot seep to damage the battery, external dust and other impurities can be prevented from entering the device, the safety and reliability of the battery are improved, the service life of the battery is prolonged, and the service life of the battery is prolonged. Guarantee is provided for stable operation of the hybrid loader, and normal operation of the hybrid loader is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of power battery heat dissipation, and in particular to a power battery thermal management device for a hybrid loader. Background Art

[0002] With growing global attention to environmental protection and sustainable development, and the ever-increasing pursuit of higher performance and efficiency in mechanical equipment within the construction industry, hybrid loaders are gaining widespread adoption as a new type of construction machinery. Hybrid loaders combine the advantages of traditional fuel and electric power, improving fuel efficiency and reducing exhaust emissions while also placing higher demands on the performance and safety of their core component—the power battery. Power batteries inevitably generate heat during the charging and discharging process. This is primarily due to the electrochemical reactions within the battery and its internal resistance, which results in the conversion of electrical energy into heat. In the complex and harsh operating environment of hybrid loaders, characterized by high temperatures, high dust levels, frequent vibration, and shock, the heat generated by the power battery can lead to a series of serious problems if not managed effectively and promptly.

[0003] Prior art battery thermal management devices have numerous shortcomings when applied to hybrid loaders. For example, existing structural designs fail to adequately address the sealing and safety of the coolant to accommodate the unique operating environment of hybrid loaders. The cooling system structure of some thermal management devices is relatively loose, and the connections between components are not tight enough, resulting in cooling water leakage. This cooling water leakage not only affects the normal operation of the thermal management system, preventing the battery from being effectively cooled, but can also cause corrosion and other damage to the battery itself, seriously affecting its performance and lifespan. Furthermore, the connections of existing thermal management devices are overly complex, prone to clogging or poor water flow. Due to the complex operating conditions of hybrid loaders, the supply and circulation of cooling water are even more stringent. Poor connections can prevent cooling water from being supplied to the battery for cooling, or prevent the cooled water from flowing back smoothly, thereby affecting the cooling efficiency of the thermal management system and, in turn, the performance and safety of the battery. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a battery thermal management device. Through the designed water supply component, thermal management component and battery frame connection structure, the device enhances the ability to adapt to special environments, improves water tightness and safety, improves the safety and reliability of the power battery, and provides guarantees for the stable operation of the hybrid loader.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A battery thermal management device, comprising: a water supply component, a thermal management component, and a battery frame; the battery is installed inside the battery frame;

[0007] A first water pipe is connected between the water supply assembly and the thermal management assembly, and the water supply assembly is installed on the top of the thermal management assembly; the thermal management assembly includes a thermal management box and a thermal management device and a fan installed inside the thermal management box, the thermal management box is installed on the top of the battery frame, and a second water pipe is connected between the thermal management device and the battery inside the battery frame.

[0008] As a further technical solution, the water supply assembly includes an expansion kettle box and an expansion kettle installed inside the expansion kettle box, and the bottom of the expansion kettle box is connected to the top of the thermal management box by bolts.

[0009] As a further technical solution, a cover plate is provided on the top of the expansion kettle box for adding cooling water into the expansion kettle.

[0010] As a further technical solution, the top of the thermal management box is a detachable top plate, the thermal management box as a whole is a sheet metal structure, and grilles are installed on the four sides of the thermal management box.

[0011] As a further technical solution, two first handles are installed above the top plate, and the two first handles are arranged opposite to each other for easy disassembly.

[0012] As a further technical solution, each surface of the battery frame is a detachable mounting plate, a maintenance hole is opened on the mounting plate on the front side of the battery frame, and a maintenance cover is provided to match the maintenance hole.

[0013] As a further technical solution, two second handles are further provided on the mounting plate on the front side of the battery frame, and the two second handles are arranged opposite to each other to facilitate disassembly.

[0014] As a further technical solution, mounting holes are provided on the mounting plates on both sides of the battery frame.

[0015] As a further technical solution, the thermal management device includes a controller, a temperature sensor and a cooling water pipeline, one end of the cooling water pipeline is connected to the water supply component, and the other end of the cooling water pipeline is connected to the battery in the battery frame.

[0016] As a further technical solution, the cooling water pipeline is provided with an electric valve, the input end of the controller is connected to the output end of the temperature sensor, and the output end of the controller is connected to the electric valve.

[0017] One or more technical solutions of the present invention have the following beneficial effects:

[0018] (1) The connection structure of the water supply component, thermal management component and battery frame in the present invention is designed for the special working environment of the hybrid loader. The connection method in the present invention improves the water tightness and safety of the thermal management device. Even when the hybrid loader faces harsh conditions such as high temperature, high dust, frequent vibration and impact, the connection between the components remains stable, and the cooling water will not leak out and cause damage to the battery. At the same time, the setting of the grid can prevent external dust, water vapor and other impurities from entering the device, thereby improving the safety and reliability of the battery, extending the battery life, and providing protection for the stable operation of the hybrid loader and ensuring the normal operation of the hybrid loader.

[0019] (2) The water supply component, thermal management component and power battery of the utility model are connected by water pipes. This connection method is simple and efficient and can adapt to the complex working environment of the hybrid loader. The water pipe connection ensures that the cooling water flows smoothly in the thermal management device and will not cause water flow blockage or stagnation due to complex working conditions. During the frequent operation of the loader, a stable water flow supply is crucial for battery cooling. This connection method can ensure that the cooling water is supplied to the battery in a timely manner for cooling, so that the battery is always in a suitable temperature environment, improving battery performance and charge and discharge efficiency.

[0020] (3) In the present invention, a maintenance cover is provided on the front side of the thermal management box, and mounting holes are provided on both sides of the thermal management box. This structural design greatly facilitates repair and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 This is a schematic diagram of the main structure of the battery thermal management device of the present invention;

[0023] Figure 2 This is a schematic top view of the structure of the battery thermal management device of the present invention;

[0024] Among them: 1. Water supply assembly; 2. Thermal management assembly; 3. Battery frame; 4. Maintenance cover; 5. Second handle; 6. First handle; 7. Grille; 8. Mounting hole. DETAILED DESCRIPTION

[0025] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] Example 1

[0027] The utility model provides a battery thermal management device. In this embodiment, the power battery of a hybrid loader is taken as an example. Figure 1 As shown in the structural diagram of the battery thermal management device, the battery thermal management device includes a water supply component, a thermal management component, and a battery frame. Multiple power batteries can be designed as needed and installed inside the battery frame. A first water pipe is connected between the water supply component and the thermal management component, and the water supply component is installed on top of the thermal management component. The thermal management component includes a thermal management box and a thermal management device and a fan installed inside the thermal management box. The thermal management box is installed on top of the battery frame, and a second water pipe is connected between the thermal management device and the batteries inside the battery frame. The connection structure of the water supply component, thermal management component, and battery frame is designed for the special working environment of hybrid loaders. The connection method of this utility model improves the watertightness and safety of the thermal management device. Even under harsh conditions such as high temperature, high dust, frequent vibration, and impact faced by hybrid loaders, the connections between the components remain stable, and cooling water will not leak out and damage the battery.

[0028] Specifically, the water supply assembly includes an expansion water tank and an expansion water tank mounted within the expansion water tank. The bottom of the expansion water tank is bolted to the top of the thermal management tank, and a cover is provided on the top of the expansion water tank to facilitate the addition of cooling water to the expansion water tank. The thermal management device includes a controller, a temperature sensor, and a cooling water pipeline. One end of the cooling water pipeline is connected to the expansion water tank in the water supply assembly via a first water pipe, and the other end of the cooling water pipeline is connected to the batteries in the battery frame via a second water pipe. The cooling water pipeline is provided with an electric valve. The temperature sensor is used to obtain real-time temperature information from the power battery, and the controller is used to output a control signal based on the temperature of the power battery. Specifically, the input end of the controller is connected to the output end of the temperature sensor, and the output end of the controller is respectively connected to the electric valve and a fan. The electric valve controls the on / off flow and flow rate of water in the cooling water pipeline based on the control signal output by the controller. The fan is used to cool the cooling water. The fan adjusts its speed based on the control signal output by the controller to thereby control the temperature of the cooling water. The control process implemented by the controller is based on existing technology in the art. This embodiment does not make any improvements to the control process of the controller. A controller that can implement the above solution can be selected. According to the above-described scheme, the expansion kettle and the thermal management device, as well as the thermal management device and the battery, are connected via water pipes (a first water pipe or a second water pipe). This connection method is simple and efficient and can adapt to the complex working environment of the hybrid loader. The water pipe connection ensures that the cooling water flows smoothly in the thermal management device and does not cause water blockage or stagnation due to complex working conditions. During the frequent operation of the loader, a stable water flow supply is essential for battery cooling. This connection method can ensure that cooling water is supplied to the battery in a timely manner for cooling, so that the battery is always in a suitable temperature environment, thereby improving battery performance and charge and discharge efficiency.

[0029] In this embodiment, the thermal management box features a removable top plate. The box is constructed entirely of sheet metal, with grilles installed on all four sides. Two first handles are mounted above the top plate, facing each other for easy removal. The grilles prevent dust, moisture, and other impurities from entering the device, improving battery safety and reliability, extending battery life, and ensuring stable operation of the hybrid loader.

[0030] In this embodiment, the interior of the battery frame adopts a layered design, which can accommodate multiple groups of power batteries, and each side of the battery frame is a detachable mounting plate. A maintenance hole is provided on the mounting plate on the front side of the battery frame, and a maintenance cover is provided to match the maintenance hole. The power battery can be repaired by opening the maintenance cover, which shortens the maintenance time and improves work efficiency; two second handles are also provided on the mounting plate on the front side of the battery frame, and the two second handles are arranged opposite to each other, which is convenient for installing or removing the power battery after disassembly, and mounting holes are provided on the mounting plates on both sides of the battery frame, through which the power battery can be fixed to the inside of the battery frame.

[0031] In this embodiment, a battery thermal management device is mentioned, and the specific working method of the battery thermal management device is as follows:

[0032] The power battery is installed inside the battery frame. When the power battery starts working, a chemical reaction will occur inside the battery and generate heat. The temperature sensor in the thermal management device will collect the real-time temperature of the power battery and transmit the temperature signal to the controller. After simple analysis, the controller outputs a control signal and controls the electric valve on the cooling water pipeline, thereby controlling the on-off and flow rate of the water in the cooling water pipeline, thereby achieving effective thermal management of the power battery.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A battery thermal management device, characterized in that: include: A water supply component, a thermal management component, and a battery frame; the battery is installed inside the battery frame; A first water pipe is connected between the water supply assembly and the thermal management assembly, and the water supply assembly is installed on the top of the thermal management assembly; the thermal management assembly includes a thermal management box and a thermal management device and a fan installed inside the thermal management box, the thermal management box is installed on the top of the battery frame, and a second water pipe is connected between the thermal management device and the battery inside the battery frame.

2. A battery thermal management device according to claim 1, characterized in that: The water supply assembly includes an expansion water kettle box and an expansion water kettle installed inside the expansion water kettle box. The bottom of the expansion water kettle box is connected to the top of the thermal management box by bolts.

3. A battery thermal management device according to claim 2, characterized in that: A cover plate is provided on the top of the expansion kettle box for adding cooling water into the expansion kettle.

4. A battery thermal management device according to claim 1, characterized in that: The top of the thermal management box is a detachable top plate. The entire thermal management box is a sheet metal structure, and grilles are installed on the four sides of the thermal management box.

5. A battery thermal management device according to claim 4, characterized in that: Two first handles are installed above the top plate, and the two first handles are arranged opposite to each other for easy disassembly.

6. A battery thermal management device according to claim 1, characterized in that: Each surface of the battery frame is a detachable mounting plate. A maintenance hole is opened on the mounting plate on the front side of the battery frame, and a maintenance cover is provided to match the maintenance hole.

7. A battery thermal management device according to claim 6, characterized in that: Two second handles are also provided on the mounting plate on the front side of the battery frame, and the two second handles are arranged opposite to each other for easy disassembly.

8. A battery thermal management device according to claim 6, characterized in that: Mounting holes are provided on the mounting plates on both sides of the battery frame.

9. The battery thermal management device according to claim 1, characterized in that: The thermal management device includes a controller, a temperature sensor and a cooling water pipeline. One end of the cooling water pipeline is connected to the water supply component, and the other end of the cooling water pipeline is connected to the battery in the battery frame.

10. A battery thermal management device according to claim 9, characterized in that: The cooling water pipeline is provided with an electric valve, the input end of the controller is connected to the output end of the temperature sensor, and the output end of the controller is connected to the electric valve.

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